'use strict'
const path = require('path')
    // const defaultSettings = require('./src/settings.js')

function resolve(dir) {
    return path.join(__dirname, dir)
}

// const name = defaultSettings.title || 'vue Admin Template' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 80 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
    /**
     * You will need to set publicPath if you plan to deploy your site under a sub path,
     * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
     * then publicPath should be set to "/bar/".
     * In most cases please use '/' !!!
     * Detail: https://cli.vuejs.org/config/#publicpath
     */
     outputDir: process.env.outputDir,
     assetsDir:"static",
    // publicPath: '/',
    // outputDir: 'dist',
    // assetsDir: 'static',
    // lintOnSave: process.env.NODE_ENV === 'development',
    // productionSourceMap: false,
    // devServer: {
    //     port: port,
    //     open: true,
    //     overlay: {
    //         warnings: false,
    //         errors: true
    //     },
    //     before: require('./mock/mock-server.js')
    // },
    configureWebpack: {
        // provide the app's title in webpack's name field, so that
        // it can be accessed in index.html to inject the correct title.
        // name: name,
        resolve: {
            alias: {
                '@': resolve('src')
            }
        }
    },
    chainWebpack(config) {
        // it can improve the speed of the first screen, it is recommended to turn on preload
        // config.plugin('preload').tap(() => [{
        //     rel: 'preload',
        //     // to ignore runtime.js
        //     // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        //     fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        //     include: 'initial'
        // }])

        // when there are many pages, it will cause too many meaningless requests
        // config.plugins.delete('prefetch')

        // set svg-sprite-loader
        config.module
            .rule('svg')
            .exclude.add(resolve('src/icons'))
            .end()
        config.module
            .rule('icons')
            .test(/\.svg$/)
            .include.add(resolve('src/icons'))
            .end()
            .use('svg-sprite-loader')
            .loader('svg-sprite-loader')
            .options({
                symbolId: 'icon-[name]'
            })
            .end()

        // config
        //     .when(process.env.NODE_ENV !== 'development',
        //         config => {
        //             config
        //                 .plugin('ScriptExtHtmlWebpackPlugin')
        //                 .after('html')
        //                 .use('script-ext-html-webpack-plugin', [{
        //                     // `runtime` must same as runtimeChunk name. default is `runtime`
        //                     inline: /runtime\..*\.js$/
        //                 }])
        //                 .end()
        //             config
        //                 .optimization.splitChunks({
        //                     chunks: 'all',
        //                     cacheGroups: {
        //                         libs: {
        //                             name: 'chunk-libs',
        //                             test: /[\\/]node_modules[\\/]/,
        //                             priority: 10,
        //                             chunks: 'initial' // only package third parties that are initially dependent
        //                         },
        //                         elementUI: {
        //                             name: 'chunk-elementUI', // split elementUI into a single package
        //                             priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
        //                             test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
        //                         },
        //                         commons: {
        //                             name: 'chunk-commons',
        //                             test: resolve('src/components'), // can customize your rules
        //                             minChunks: 3, //  minimum common number
        //                             priority: 5,
        //                             reuseExistingChunk: true
        //                         }
        //                     }
        //                 })
        //                 // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
        //             config.optimization.runtimeChunk('single')
        //         }
        //     )
    }
}